Is there any kind of comprehensive documentation on the Jetson Nano's disk partition structure and boot process

[jimrh]

Greetings!

I attempted searching and all the documentation I could find was for the Orin and Xavier systems.

Issue:
I am investigating the possibility of booting to one of multiple instances of the operating system on an extremely large SSD - 1tb.^[1]

What I would like to find is some kind of documentation for the Jetson Nano that describes:

1. The structure of the boot media.
   There are 13 - 14 partitions on the flashed SD card after first boot and config.  Why?  What do they do - in detail if possible.

2. Starting from cold-and-dark, what is the boot process for the Jetson Nano, what files are in what partitions, and what are the acceptable/legal options and/or boot directives?

   • If there is a difference between the original, (one camera), and new (two cameras) version, what is it?

I’ve done the due diligence and tried searching, but as I said above, none of the available documentation mentions the Nano.

Thanks!

====================

1. https://forums.developer.nvidia.com/t/multi-boot-the-jetson-nano/284033

[doquiros]

Hope this helps:

https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3273/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/bootflow_jetson_nano.html#

https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3273/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/part_config.html#